Automobile radiator



Jan, 6. 1925.

J. ALBACH AUTOMOBILE RADIATOR Filed Dec. 14, 1921 E UAM @g5-.HH

John Alb/Inh A mwdwd,

Patented Jan. 6, 1925.

AUTOMQeisa Rename.

Application led'December 14, 14321;'v Serial No. 522,278;

To ZZ whom-t may concern,

Be it known that LyJoHN Alturion, acit1i zeny of theellnited States,4 residingatA Muslegon inthe; county of- Muskegon anch State of' Michigan, have invented oer-tain new and useful: Improvements in Automobile- Radiators7 off' which the following is aspecification.

This invention relates to automobilel radiatorsV and more particularly toA cores` for such radiators.

The-r object of t-he invention is to so construct such a core as to provide for eXpansion of t-he water tubes on freezing of the water therein and thus prevent bursting of these tubes.

Another object is to so construct a` core ot' this character which may be used on any make of car using water cooling systems and in which the tins are readily removable for repairs and the like.

Another object is to provide such a core the water tubes of which have lateral offsets therein with the fins located on opposite sides of the oifsets thereby providing unrestricted portions of the tubes which will eX- paud on the freezing of the water therein and thus prevent bursting of the tubes.

lVith these and other objects in View, the invention consists in certain novel features of construction as hereinafter shown, described and claimed.

In the accompanying drawings Figure l represents a front elevation of a radiator constructed in accordance with this invention.

Fig. 2 is au enlarged detail horizontal section taken on the line 2 2 of Fig. l, and

Fig. 3 is a detail vertical section of the radiator core.

ln the embodiment illustrated, the usual radiator frame lA is shown having the usual upper and lower water chambers 2 and 3 which are connected by the circulating tubes et which constitute a part of this invention.

The core which is mounted in the frame l and which embodies this invention comprises a plurality of upright flat water tubes et any desired number' of which may be employed six being here shown, each of which is constructed from a single sheet of metal, preferably brass, united at the rear by a double lock seam 6 which is soldered to ren-der it water-tight. Each of these tubes 4 has a laterally offset portion 7 formedK midway the 'width thereof isA ther` frame 'l-A with their A upper and= lower ends communicating respective-lyl with theKA waterV chamber1s-2r and 3f of saidv4 frame to,- provide Y for. Y the1 circulation of w ateny y through. them` before itvr entersth-e waterjaclretfof.l thej engine as is usual in radiators of this character.

Arranged between the upright tubes 4 are a plurality of fins 8 one of which is arranged between the front portions 9 of the tubes 4: and another between the rear portions l() thereof said fins terminating at the ends of the offset portion 7 4as is shown clearly in 2 whereby said offset portion 7 is unrestricted and thus permitted to expand laterally on freezing yof water in the tube which prevents bursting of the tubes. These fins 8 are preferably constructed in serpentine form as sho-wn clearly in the drawings with the alternating curved portions 1l thereof contacting with the opposed tubes 4. wWith this arrangement of the fins the air entering from the front of the radiator will pass through the passages 12 formed by the front fins and striking the oitset port-ion 7 of the tubes at the rear of these ns will be deflected into the passages 13 of the rear fins. thus the air will be buffeted back and forth against the walls of the tubes as it passes between them.

As shown, in Fig. 2 the thickness of the radiatorl core from front to rear includes two series of the tins 8 the tubes 4; being of a width corresponding to the width of the two series of tins plus the offset portion 7 in said tubes.

The tins 8 may be constructed of any suitable thin sheet metal but preferably are made of brass which is a good conductor of heat so that the heat from the water in the tubes is readily transmitted thereto and `cooled by the passage of the air through the conduits 12 and 13 formed by the fins.

From the above description it will be obvious that a radiator core 5 constructed -as herein sho-wn and `described will prevent all possibility of bursting of the tubes of the radiator incident to freezing of the water therein and that the water will be quickly cooled by the yarrangement of fins between the tubes.

The preferred embodiment of the inven-V the'principle of the invention or sacrificing any of its advantages.

I claimz l. A radiator of the class described comprising a plurality of' flat tubes constructed from a single sheet of metal having a double lock seam at the rear thereof, said tubes being offset laterally midway their widths and a `plurality of serpentine fins arranged between said tubes with the oppositely disposed curved portions thereof contacting with the `opposed tubes, two series of saidA fins being employed one at the front and one at the rear of the radiator, each series terminating adjacent the off'set portion in the tubes whereby the tubes are provided with expansible portions to prevent bursting of the tubes on the freezing of the water therein.

2. kIn aradiator of the cla-ss described, a series of flat tube members, each having a rear portion, an offset intermedia-te portion and a front portion, the front and rear portions being in'parallel, a series of corrugated fin members positioned between the said rear portionsand extending inwardly to said offset portion, and a series of corrugated 'fn members positioned between the said front portions and extending rearward- 1y to said offset portions. l

In testimony whereof, I affix my signature hereto. J OHN' ALBACH. 

